2684201066399 has 4 divisors (see below), whose sum is σ = 2684327886240. Its totient is φ = 2684074246560.

The previous prime is 2684201066383. The next prime is 2684201066419. The reversal of 2684201066399 is 9936601024862.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2684201066399 - 2⁴ = 2684201066383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2684201066329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63378167 + ... + 63420504.

It is an arithmetic number, because the mean of its divisors is an integer number (671081971560).

Almost surely, 2^{2684201066399} is an apocalyptic number.

2684201066399 is a deficient number, since it is larger than the sum of its proper divisors (126819841).

2684201066399 is a wasteful number, since it uses less digits than its factorization.

2684201066399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126819840.

The product of its (nonzero) digits is 6718464, while the sum is 56.

The spelling of 2684201066399 in words is "two trillion, six hundred eighty-four billion, two hundred one million, sixty-six thousand, three hundred ninety-nine".